Cylinder-head construction



C Y KNIGHT CYLINDER HEAD CONSTRUCTION Filed Dec: 22, 1921 Nov. 22, 1927.

INVENTOR. .Charlzsg. Kmgh r ATTORNEY Patented Nov. 22, 1927.

1,650,363 PATENT OFFICE,

GIIARIEs Y. KNIGHT, E PASADENA, CALIFORNIA, A'ssIeNoR To KNIGHT AMERICAN PATENTS coMrANY, OF CHICAGO, ILLINOIS, A CORPORATION OF- DELAWARE.

V CYLINDER-HEAD CONSTRUCTION.

Application filed nece mber 22, 1921. Serial No. 524,164.

My invention relates to improvements in cylinder heads for sleeve valve engines and has for its object to provide 'aniimproved take-up device between the head and packing or junk ring whereby all objectionable noises occasioned by the moving of the ring longitudinally upon the head may be elimisleeve surrounding the head with improved means tending to constantly urge the ring upon the head to prevent it from shifting longitudinally thereon. i 7

Another object of the invention is to provide in combination with a sleeve valve engine, a junk ring upon the head and a retaming or tightening ring disposed upon one end of the junk ring the tightening of the latter being afforded from time to time by the spreading or widening of the same at intervals or the producing of enlargements thereon, which may be effected by the driving of a suitable tool into the metal to separate the particles thereof. i

To these and other ends the invention em bodies the novel construction and combina tion of parts shown and describedherein iii and is int-ended to cover any such modifications as may, fall within the scope of the appended claims. Y

7 One embodiment of the invention is illus trated in the accompanying drawing, in

which: a r

' Figure I is a Sectional elevation through the top of a sleeve valve engine illustrating one embodiment of the invention.

Figure II is an enlarged sectional view through the lower portion of the cylinder,

head shown in Figure In 1 Fi ure III is a sectional plan taken on the lIne III III of Figure I'I Figure IV is an enlarged detailed section of the head showing a modified form of take up device for the'junk ring applied.

thereto, and

Figure V is a detail perspective of th take up deviceshown in Figure IV.

Referring to the drawing ("10) represents a cylinder in which is disposed the inner and outer sleeve valves (11 and 12)as shown in Figure I. A piston (13) is mounted within the inner sleeve and a cylinder head (14) projects'i'nto the upper end of the sleeves and is provided with a central upstanding portion (15) projecting through the cylinder cover (16) and secured thereon by means of a nut (17), all of which construction is that generally employed in what is known as'the Knight sleeve valve motor. The cylinder head (14) is provided with an annular recess (18 in the outer wall. thereof in which is disposed a packing or junk ring (19) and superimposed upon the upper end of the junk ring is a retaining or tightening ring (20) preferably formed of relatively soft metal. The retaining ring may be made from a metal having a different coeflici'ent of expansion from that of the junk ring, such different coefl'icient of expansion being chosen for retaining ring and junk ring. respectively as will compensate for any change in the longitudinal width of the groove due to the temperature changes. After these rings have been assembled upon the head, tightening of the junk ring is effected by widening the retaining ring, or the forming of enlargements thereon which may be done by driving a punch or other suitable tool into the ring at certain intervals as indicated at (21) to produce a lateral spreading of the particles ofmetal to take up lost mot-ion between the parts. Thus the junk'ring'is urged upon the annular rib portion (22) of the head and is prevented from shifting longitudinally of the latter and consequently the objectionable, noises usually encountered in engines of this type, due to the striking of the ring against the head. are eliminated. As the'rings' become worn they junk ring may be kept tight at all times.

In the modification showniin Figures IV and Vthe construction of the head and unk ring is the same as that shown in Figures I v and II, the difference being in the modified form of retaining'ring indicated at (23). This member comprises a split ring constructed of spring material and is corrugated as indicated in Figure 'V or formed with a series of yieldable spring-like portions (24) acting to urge the junk ring upon 'the heaid at all times and thereby eliminat-v may be tightened from time to time by I spreading the metal of the retaining ring in intention to include any and ing the sudden striking of the ring against the head during the reciprocation oi; the sleeve valves within the cylinder.

It will be apparent that the invention shown and described herein is susceptible of various modifications, embodiments and arrangements to suit special .or varyingconditions and I wish it to be understood that the terms which I have used are merely descriptive and not limiting and that it is my ll modifications which come within the scope ofthe invention as definedin the appended Cla'lli'lS.

What 1 claim and desire to secure by {Letters Patent is:

1. In a reciprocating engine, a cylinder, a

head projecting therein, a sleeve disposed within the cylinder around the head, the head being provided with an annular recess in the outer wall thereof, a packing ring'dis- 'posed w thin said recess, and a member mounted within the recess upon one end of the packing ring, said member being forced into engagement with said head and packing ring at certain intervals capable of being forced, by mechanical operation thereon,

. to prevent longitudinal displacement of the latter by driving a tool therein .to spread the metal at predetermined intervals.

3. In a reciprocating engine, a cylinder head having an annular recess in the outer wall thereof, a packing ring within said recess and a tightening ring disposed within the recess upon one end of the packing ring, said tightening ring being forced into engagementwith said head and packing ring to prevent longitudinal displacement oi thelatter by driving a tool therein to spread the inetal at pr-edetern'lii'ied inter ale.

4-. The herein described .nicthod of con structingcylinder heads comprising the termation of an annular recess in thc head, the placing of a packing ring and atightening ring end. to end wlthin the recess and subsequently driving a suitable tool into thev tightening ring at intervals to spread the material thereof so to urgethe packing ring upon the head. 7

5. In a reciprocatingengine, a cylinder head having an annular recess in the outer wall thereof; a packing ring within said recess; and a tightening ring disposed within said recess between the packing ring and ad j acent wall of therecess, said tightening ring having rigid lateral oft-set portions on either side thereof contacting respectively with the packing-ring and said recess wall.

6. In a, reclprocating engine, a cyllnder head having an annular recess in the outer wall thereof; a packing ringwithin said recess; anda tightening rlng disposed within said recess between thepackingring and ad;

jacent wall of the recess, said tightening ring having ri id lateral ro'ectin ortions on.

p b 23 .i

either side thereof, said portions beingdisplaced from eachotheralongthe circumference of said ring. 7

7.111 a reciprocating engine, a cylinder iead having an annular recess in the outer wall thereof; a packing ring within said recess; and a tightening ring disposed within said recess above the. packing :ringand adjacent wall. of the recess, said tightening ring having rigid. projecting portions on one side thereoi at spaced intervals adaptedtoicontact with the edge of the packing ring to placing a packing ring and a tightening ring in ad acent end to .end position with each other insaid recess;and subsequentlyiforcing portions of said tighteningring laterally at inter als along said ringinto positive en gageinent .with the adjacent end of said packing ring and the adjacent side of said recess. 7 I I In testimony whereof, I atiix my signature.

onaanns Y. KNIGHT 

